baber/WOPTO huggingface dataset:
Patent KR-20000063414-A (KR)
Inventor: LEE SUNG HYU
IPC: C02F5/00
Filed: 2000-07-07
Abstract: PURPOSE: An apparatus equipped with furnace to melt natural silica(SiO2) and sodium carbonate(Na2CO3) at 1,450°C and an automatic molding machine is provided, which manufacture continuously and massively. CONSTITUTION: The apparatus comprises a feed machine(1) to supply raw materials, a furnace and an automatic molding machine(11). A furnace is divided into three parts -first zone(16), secondary zone(17) and third zone(18)- is constructed fire brick(13) and is equipped with a castable(14), power supplies(4,6,9) which control temperature inside furnace at 1.350°C, 1.400°C, 1.450°C respectively equipped sensors (3,5,8). Melting materials flow through gradient casting furnace(10) into an automatic molding machine(11), and continuously molded and slowly cooled in the cooling device(12) at 150-200°C.
Patent KR-20020004771-A (KR)
Title: Apparatus of Liquid Crystal Display and Fabricating Method thereof and Method of Repairing Liquid Crystal Display using the same
Inventor: YOON JIN HUI
IPC: G02F1/136
Filed: 2000-07-07
Abstract: PURPOSE: An LCD(Liquid Crystal Display) is provided to repair a short circuit between a source electrode and a gate electrode by removing a short-circuit part caused by conductive particles at an overlap part between the source electrode and the gate electrode. CONSTITUTION: An LCD consists of N numbers of gate lines(33a) and M numbers of data lines(43a) on a transparent substrate. The gate lines are formed by metal such as Al or Cu while the data lines are formed by metal such as Mo, Ti or Ta, or Mo ally including MoW, MoTa or MoNb. The gate lines and the data line are electrically insulated at each cross by a gate insulating film of SiNx or SiOx. N*M numbers pixels are formed in N*M numbers of pixel areas and switched by a TFT(Thin Film Transistor). The TFT includes a gate electrode(35a), source/drain electrodes(45), a semiconductor layer and an ohmic contact layer. The gate electrode is connected with the gate line, and the drain electrode is connected with the data line. The source electrode is formed corresponding to the drain electrode with the gate electrode therebetween. The source/drain electrodes are overlapped with both sides of an active layer by forming the ohmic contact layer. The source electrode is deposited on a photoresist film and exposed to beam. Thereby, the source electrode is multi-divided. If a short circuit between the source electrode and the gate electrode occurs, a part having conductive particles and the body of the source electrode are removed.
Patent KR-20010021072-A (KR)
Title: Electrophotographic apparatus
Inventor: KARASAWA KAZUNORI
IPC: G03G15/08
Filed: 2000-07-12
Abstract: PURPOSE: To provide a small size electrophotographic device provided with a toner recycling mechanism where image failure such as soiling of background is not generated and a good image is formed over a long period of time. CONSTITUTION: In this device, mesh members 36 with sieve opening that is >=twice a volumetric average diameter of carrier and at the same time that is =<10 mesh are provided in a developer path inside a developing device. Furthermore, a slide abrading member by which the mesh is slide-abraded is provided along with the mesh members in the developing device, paper powder inside the recycled toner is vigorously pushed against the mesh and made small and, at the same time, clogging of the mesh members can be prevented.
Patent KR-20020007788-A (KR)
Title: The auto-answering method of handset in two number service
Inventor: CHO SEONG WON
IPC: H04B7/26
Filed: 2000-07-19
Abstract: PURPOSE: An automatic response service method in a terminal for receiving a two-number service is provided to transmit the mind for which a user wishes by setting each different automatic response message to termination numbers provided to the terminal. CONSTITUTION: If a user does not perform a termination response(305), a control unit checks whether an automatic response function is set in a terminal of the user(309). In case that the automatic response function is set in the terminal of the user, the control unit confirms the set automatic response function and checks a telephone number terminated in the terminal(311). The control unit confirms whether the terminated telephone number is a termination signal to the first termination number of the terminal(313). The control unit transmits an automatic response message 1 to the first termination number stored in a memory of the terminal to the user(315). The control unit transmits an automatic response message 2 to the second termination signal stored in the memory(317).
Patent KR-20020010831-A (KR)
Title: Formation method of tungsten metal gate line in semiconductor devices
Inventor: KANG CHANG JIN
IPC: H01L21/336
Filed: 2000-07-31
Abstract: PURPOSE: A method for manufacturing a tungsten metal gate line of a semiconductor device is provided to increase a process margin, by etching tungsten and polysilicon in the same chamber while using mixture gas of Cl2 and O2 as etch gas of a dry etch process so that the etch rate of tungsten is 1000 angstrom per minute and the etch rate of polysilicon is lower than that of tungsten. CONSTITUTION: The mixture gas of Cl2 and O2 is used as etch gas in etching a tungsten metal gate of the semiconductor device. The tungsten metal gate is etched in an inductive coupling plasma reactor(100) and by an in-situ method.
Patent KR-20020013187-A (KR)
Title: Test system of a semiconductor memory device
Inventor: KOO GYO SEOL
IPC: G11C29/00
Filed: 2000-08-11
Abstract: PURPOSE: A test system for a semiconductor memory device is provided, which evaluates the performance of the device more accurately by varying the level of the power supply voltage applied to the memory device during a pump test. CONSTITUTION: If a pump test item is selected, a tester(4) applies a power supply voltage(A) to a load board(3) and applies a pulse signal(B) having a level variation. The applied pulse signal can be being applied by the tester, or by using an additional pulse generator. The power supply voltage and the pulse signal are applied at the same time so that the level of the power supply voltage applied during a write and a read operation oscillates with a level variation. At read and write operation, the power supply voltage applied to the semiconductor memory device is fixed at a certain level and the pulse signal oscillates with a predetermined level variation. So the power supply voltage periodically oscillates with a certain level variation.
Patent KR-20000064003-A (KR)
Inventor: SHIN IL SAN
IPC: G06Q50/20
Filed: 2000-08-16
Abstract: PURPOSE: A dedicated web browser for offering educational information is provided to check a state of learners by sensing and analyzing a brain wave pattern of the learners, and to enhance a learning efficiency by generating a specific light or sound according to the state of the leaners. CONSTITUTION: A dedicated web browser is comprised of an operating system(10), an educational information database(20), the internet(30), an educational information link(31), a harmful information blocking program system(40), a harmful information assurance system(50), a specific light and sound generation system(60), a special wave generation system(70), a special smell generation system(80), a brain wave sensor(90), and a brain wave check system(100). The educational information database(20) stores information on various subjects with various degrees of difficulty. The harmful information blocking program system(40) automatically installs a harmful information blocking program if the web browser is set on a computer. The brain wave sensor(90) senses the brain wave of the leaners.
Patent KR-20020026392-A (KR)
Inventor: AHN SANG UK
IPC: C04B28/06
Filed: 2000-08-21
Abstract: PURPOSE: Provided are static-dissipative composition and panel manufactured therewith which have dramatically improved static dissipativity to uniform surface resistance and excellent strength and endurance. Also, provided is a panel manufactured by using the composition. CONSTITUTION: The composition consists of a binder, high strength of a compound, an inorganic compound, a conductive material, an admixture, and a hardening catalyst, wherein the conductive material is pitch or PAN based carbon fiber having a size of 100-1000 micrometer, and added in an amount of 0.1-20 wt.%.
Patent KR-20020016135-A (KR)
Title: Method of preparing porous sialon
Inventor: HAN SANG MU
IPC: C04B38/00
Filed: 2000-08-24
Abstract: PURPOSE: Provided are porous silicon oxynitride(Si3ON4) ceramics with homogeneous pores, light weight and heat-resistance by sintering the mixture of powder(Si3N4 + AlN + CaO) with low melting point and alpha-sialon silicon oxynitride. CONSTITUTION: The preparation method comprises the steps of: mixing 56-58wt.% of Si3N4, 1-5wt.% of AlN with 39-40wt.% of CaO with a vibrational mixer and thermal treating at 300-500 deg.C for 0.5-2hrs. for spheroidized powder with low melting point; adding it to alpha-sialon silicon oxynitride powder comprising 61-88wt.% of Si3N4, 8-28wt.% of AlN and 3-11wt.% of CaO for the mixture of powder with low melting point and alpha-sialon silicon oxynitride mixed with in a weight ratio of 5-15 : 85-95; and sintering at 1600-1700deg.C for 1-8hrs.
Patent KR-20020016245-A (KR)
Title: Ultra low temperature heat treatment apparatus
Inventor: HWANG SUN YEONG
IPC: C21D1/00
Filed: 2000-08-25
Abstract: PURPOSE: A process for cryogenic treatment of tool steel by tempering tool steel at high temperature for a short period of time after tempering at low temperature for a long period time is provided which has the advantage of extending the service life of tool steel by improvement of wear resistance of steel. CONSTITUTION: The temperature of tool steel is maintained at -196deg.C by cryogenic treatment after quenching and raised to room temperature. The tool steel is then heat-treated at 180 to 230deg.C for about 24 hr and tempered at 400 to 650deg.C for 1 to 3 hr. This process produces tool steel having excellent abrasion resistance and shockability as compared to tool steel heat-treated at high temperature for 3 to 4 hr.
Patent KR-20020016665-A (KR)
Title: tandem master cylinder with central valve of center valve fixing structure
Inventor: YANG JEONG HO
IPC: B60T13/122
Filed: 2000-08-26
Abstract: PURPOSE: Center valve fixing structure of a tandem master cylinder is provided to increase productivity by reducing entire parts, and to simplify assembling process by fixing a center valve simply with a retainer. CONSTITUTION: A valve spring(33) is formed in a valve hole(23) of a piston(20), and a pin hole(22) having a valve pin(31) is opened and closed by a center valve(30). A fitting groove(23a) is recessed in the inner periphery of the valve hole. A retainer(40) consists of an elastic piece(41) combined with the fitting groove, an expansion groove(43) cut inward in the inner periphery of the elastic piece, and a supporting part(45) protruded around the expansion groove to support the valve spring. The retainer is installed in the fitting groove. The center valve is inserted to the pin hole and the valve hole, and the retainer is fitted to the valve hole, and the elastic piece is bent flexibly in contacting to the valve hole. The elastic piece is assembled with the fitting groove firmly with restoring the contracted elastic piece. The center valve is prevented from being separated from the valve hole with supporting the end of the valve spring by the supporting part of the retainer.
Patent KR-20020019362-A (KR)
Title: guard rail
Inventor: LEE SANG U
IPC: E01F15/00
Filed: 2000-09-05
Abstract: PURPOSE: A guardrail is provided to prevent accidents at night by installing various joinable/disjoinable indicating devices such as luminous bodies. CONSTITUTION: The guardrail comprises: a post(10) placed along a road; a guard plate(12) containing a primary projected part(16) and a secondary projected part(18) fixed to the post(10) and formed evenly along the length of the upper and lower parts, a groove part(20) formed between projected parts(16,18), a primary fitting part(26) formed on a primary joint(22) of the primary projected part(16) and the groove part(20), and a secondary fitting part(28) formed on a secondary joint(26) of the secondary projected part(18) and the groove part(20); and an indicating device(30) containing a primary fixing part(32) fitted to the primary fitting part(26) and a secondary fixing part(34) fitted to the secondary fitting part(26) of the guard plate(12).
Patent KR-20020019813-A (KR)
Title: Photoresist remover composition comprising ammonium fluoride
Inventor: LEE SANG DAE
IPC: G03F7/42
Filed: 2000-09-07
Abstract: PURPOSE: Provided is a photoresist remover composition containing ammonium fluoride, which can easily remove resist polymers, modified and cured by dry etching and ashing processes in a via hole pattern forming process, in a short time and can minimize the corrosion of a lower metal layer. CONSTITUTION: The photoresist remover composition comprises 0.01-0.3wt% of the ammonium fluoride, 20-40wt% of water, 1-7wt% of benzotriazole represented by the formula 1, and 45-78wt% of alkyl amide represented by the formula 2. In the formula, R1, R2, and R3 are hydrogen or at least one alkyl group, wherein the alkyl group is C1-C2 straight alkyl group.
Patent KR-20010021476-A (KR)
Title: Nuts having a spring for restraining loose
Inventor: KIM YEONG DEOK
IPC: F16B39/34
Filed: 2000-09-26
Abstract: PURPOSE: A nut having a spring for preventing unfastening is provided to prevent the natural unfastening of the nut by positioning a coil spring in the nut to be coupled with a spiral part formed in the nut and simplify the manufacturing process of the nut for mass-producing of the nut. CONSTITUTION: A nut with an unfastening prevention spring includes a nut(110) formed with a spiral part(111) on an inner peripheral surface and spring fixing grooves(113) at an end, and a coil spring(130) to be coupled with the spiral part of the nut and having a fixing part(13) folded by a predetermined distance at an end to be fixed in the spring fixing groove of the nut, while the other end is freely inserted in the spiral part, wherein the coil spring is formed with a sectional shape corresponding to the spiral part.
Patent KR-20010067239-A (KR)
Title: Rare earth oxide coated phosphors and a process for preparing the same
Inventor: DO YEONG RAK
IPC: C09K11/02
Filed: 2000-09-27
Abstract: PURPOSE: A surface-coated fluorescent material useable in field emission display and vacuum fluorescent display is provided for obtaining improved cathode light emission efficiency by coating the material with rare-earth oxides. CONSTITUTION: The rare-earth oxide coated fluorescent material is prepared by a method comprising to prepare a rare-earth alkoxide solution such as the rare-earth isopropoxide in a medium including organic solvent such as toluene and water; to heat the alkoxide solution to hydrolyze the rare-earth alkoxide component to result a rare-earth hydroxide gel; to contact the resultant solution to any uncoated fluorescent materials such as sulfides or oxides to obtain a gel coated fluorescent material; to dry the gel coated fluorescent material and to carry out heat treatment or calcination process of the dried material at about 225-500 deg.C.
Patent KR-20020028442-A (KR)
Title: Method for preparing green emitting phosphor
Inventor: SHIN GYU SIK
IPC: H01J9/24
Filed: 2000-10-10
Abstract: PURPOSE: A method for manufacturing a green luminant fluorescent material for a plasma display panel is provided to enhance luminance characteristic and life time characteristic. CONSTITUTION: A green luminant fluorescent material is manufactured by solving MnSO4·5H2O 3.2g(0.0133mol) in water, adding SiO2 15g(0.25mol), and agitating the solution for 30 minutes. After agitating, Oxalic acid 54g(0.43mol) solved in water is added into the solution and the mixture solution is agitated again for 1 hour. Then, the mixture solution is filtered and dried. After increasing temperature to 1225 °C slowly, the dried material is calcined at this temperature for 120 minutes. Finally, by using zirconia balls, each of a 3 mm diameter, the calcined material is subjected to ball milling at 100rpm for 1 hour to form the green luminant fluorescent material for the plasma display panel.
Patent KR-20020028708-A (KR)
Title: Data modulating method and detecting method thereof
Inventor: KIM GI HYEON
IPC: H03M5/14
Filed: 2000-10-11
Abstract: PURPOSE: A data modulation method and a detection method thereof are provided, which are strong to crosstalk and noise and inter-symbol interference(ISI), and compensate for an error generated while reading recorded data. CONSTITUTION: The data modulation method is strong to a channel distortion, and the detection method compensates for a detection error while detecting data made by the above modulation method. The modulation method of data to be recorded in an optical record reading medium uses RLL(d,k,m,s) modulation code where a space(s) between run lengths is above 2, and a minimum run length is 'd', a maximum run length is 'k', a data bit length before modulation is 'm' and a bit number of a code word after modulation is 'n'. The method reduces a redundancy of a physical address of the optical record storing medium, and assures a detection performance strong to the channel distortion.
Patent KR-20020029212-A (KR)
Title: Method for fabricating Liquid Crystal Panel
Inventor: CHO SO HAENG
IPC: G02F1/1333
Filed: 2000-10-12
Abstract: PURPOSE: A method of fabricating a liquid crystal panel is provided to form an exhaust port for exhausting impurities and ionic materials generated while coupling a TFT(Thin Film Transistor) substrate with a color filter substrate on an edge of an overcoat layer, so as to prevent stains caused by the impurities or the ionic materials to improve picture quality. CONSTITUTION: A TFT substrate(21) having many patterned electrodes and a color filter substrate(31) having a patterned color filter layer, an overcoat layer, and a black matrix layer are prepared. By etching an edge of the overcoat layer, a concave groove(25) is formed along peripherals of a liquid crystal panel. Double sealing material(29, 29a) are formed on left and right sides around the concave groove(25) on the overcoat layer. A liquid crystal is coated. The TFT substrate(21) is coupled with the color filter substrate(31).
Patent KR-20020029849-A (KR)
Title: A element apparatus of inorganic compound semiconductor
Inventor: JUN GU RAK
IPC: H01C7/02
Filed: 2000-10-14
Abstract: PURPOSE: An inorganic oxide semiconductor device is provided to achieve an improved efficiency of degaussing circuit and color cathode ray tube by obtaining a low stable current from the Degaussing circuit in an easy manner. CONSTITUTION: An inorganic oxide semiconductor device comprises a thermistor element(30) having a resistance of constant temperature coefficient; conductive terminals(20,20a) for mechanically and electrically coupling the thermistor element; an insulating case(10) formed of a material like phenol resin, and which accommodates the thermistor element and conductive terminal; and an insulating cap(40) covering the insulating case. The insulating case has guide grooves(12,12a) for insertion of conductive terminals(20,20a), protrusions(13,13a) and coupling grooves(14,14a) for coupling with the insulating cap, and a block portion for preventing thermal tracking caused by the contact between the thermistor element and the insulating case. Conductive terminals have protrusions(21,21a) to be protruded outward from the insulating case for an ease of welding to a PCB, support portions(22,22a) to allow conductive terminals to be stably supported within the insulating case, and elastic portions(23,23a) and contact portions(24,24a) for a smooth insertion of the thermistor element.
Patent KR-20010040111-A (KR)
Title: Polymer secondary cell electrode production method
Inventor: FUJIWARA MASAKI
IPC: G02F1/17
Filed: 2000-10-18
Abstract: PURPOSE: To enhance the energy density of a polymer secondary battery by manufacturing an electrode with enhanced energy density. CONSTITUTION: A mixed powder is prepared by integrally forming by heat- pressing the mixture of the power of polymer active material 1, having the characteristic of a electrochemical oxidation-reduction reaction and a powder of an electrically conducting assisting material 2. In the electrode for a battery with thick film, cracks and splittings will not occur.
Patent KR-20020031667-A (KR)
Title: multi-path receiver and method for multi-path receiving of wireless mobile communication system using sequence multi-path signal combination
Inventor: HYUN JIN IL
IPC: H04B1/16
Filed: 2000-10-23
Abstract: PURPOSE: A multi-path receiver and a multi-path receiving method of a wireless mobile communication system using a sequential multi-path signal composition are provided to decrease power consumption and make a high speed communication possible by decreasing a memory buffer necessary for a signal composition and a signal align, thereby simplifying a circuit. CONSTITUTION: An RF/IF block(1) separates and passes transmitting/receiving frequencies. An A/D converter(2) converts an analogue signal into a digital signal. A correlator(3) receives the digital signal from the A/D converter(2) and calculates a correlation with a PN code column. An integrator(4) is provided for a signal accumulation during a data sampling period based on a data transmission rate. A memory(9) is used for storing demodulation data as a multi-path difference. A memory controller(10) controls a memory reading/writing for composing the 'n' number of demodulation data being outputted per a data period from each path receiver with previous data stored in the memory(9) in a sequential multi-path. A sequential multi-path signal composition device(11) performs a signal composition and an output of each path receiver(8) being created during each demodulation data period with a signal pre-stored in the memory(9).
Patent KR-20010112035-A (KR)
IPC: D02G1/12
Filed: 2000-10-25
Abstract: 본 발명은 섬유들의 토우로 만든 장방형 구조체를 만들기 위한 공정에 사용하기 위해 공기 개방 제트를 제공하는 바, 그 공기 개방 제트는 하우징, 하우징을 통해 토우를 이동시켜 그 토우를 개방시키기 위한 에어 제트, 및 축적실을 포함하며, 그 축적실은 이동중인 토우의 경로에 배치된 적어도 하나, 바람직하게는 2개의 천공판, 및 이동중인 토우가 그 토우의 이동을 지연시키기 위해 천공판과 일체로 되게 강제되어 그 이동중인 토우를 축적실에 적절하게 축적되게 하도록 공기의 유동을 제어하기 위한 공기 제어 장치를 포함한다. 본 발명은 또한 공기 개방 제트장치를 사용하여 다중 토우 밴드 제품을 제조하기 위한 방법, 및 그 방법에 의해 제조된 제품을 포함한다.
Patent KR-20020032234-A (KR)
Title: Injection nozzle structure of washer for automobile
Inventor: SON JUNG GU
IPC: B60S1/52
Filed: 2000-10-26
Abstract: PURPOSE: Structure of a washer liquid spray nozzle for a vehicle is provided to enhance the washing effect of a front glass by varying the spray intensity of a washer liquid depending on a vehicle speed. CONSTITUTION: A control unit(13) to control the opening degree of a nozzle body(10) is installed on the nozzle body connected with a wash liquid supply pipe(20). The control unit consists of a plunger(14) and a spring(15) to offer elasticity to the plunger. The spring maintains the open state of a path(11) via the plunger. If the plunger is closed in a large degree due to excessive pressure difference between the front portion and the rear portion of the nozzle body, a washer liquid is sprayed at a high speed. If the pressure difference is low, the washer liquid is sprayed at a low speed.